Hi All,
I have been trying to plot multiple line plots with different colors on one
figure. in my example below I was able to plot cat vs num1 as a dot plot
connected with lines but was not able to do that for cat vs num2 and I do
not know how to add the third plot cat vs num3. below is my code
df <- data.frame(cat=1:10, num1=rnorm(10), num2=rnorm(10), num3=rnorm(10))
plot(df$num1, type="b", col="red",
xlab="categories", ylab="random numbers")
points(df$num1, type="p", pch=21,
col="red",bg="red") #plot "num1"
points(df$num2, type="p", pch=21, col="green") #plot
"num2"
legend(x="topright", legend=c("num1", "num2"),
pch=c(16,16),
col=c("red","green")) #add a legend
how to make the second plot of type="b" and how to add a third plot
cat vs
num3?
I appreciate your help
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On Apr 20, 2010, at 10:34 AM, kayj wrote:> > Hi All, > > I have been trying to plot multiple line plots with different colors > on one > figure. in my example below I was able to plot cat vs num1 as a dot > plot > connected with lines but was not able to do that for cat vs num2 and > I do > not know how to add the third plot cat vs num3. below is my code > > > df <- data.frame(cat=1:10, num1=rnorm(10), num2=rnorm(10), > num3=rnorm(10)) > plot(df$num1, type="b", col="red", xlab="categories", ylab="random > numbers") > points(df$num1, type="p", pch=21, col="red",bg="red") #plot "num1" > points(df$num2, type="p", pch=21, col="green") #plot "num2" > legend(x="topright", legend=c("num1", "num2"), pch=c(16,16), > col=c("red","green")) #add a legend >Add the x values since points does not have exactly the same default behavior when given just one vector for plotting: df <- data.frame(cat=1:10, num1=rnorm(10), num2=rnorm(10), num3=rnorm(10)) plot(df$num1, type="b", col="red", xlab="categories", ylab="random numbers") points(1:10, df$num2, type="b", pch=21, col="red",bg="red") #plot "num1" points(1:10, df$num3, type="b", pch=21, col="green") #plot "num2" legend(x="topright", legend=c("num1", "num2"), pch=c(16,16), col=c("red","green")) #add a legend If you want to have all of the random point visible than use range(c(df $num1, df$num2, df$num3) as your argument to ylim.> > how to make the second plot of type="b" and how to add a third plot > cat vs > num3?I don't understand why you did not look at the help page for points and realize that type="b" would work.> > I appreciate your help >David Winsemius, MD West Hartford, CT
Where is the problem with your code? You seem to have understood the principle correct and all what you want to to is possible with your code. You only seem to have made some typos (or is there any other reason why you plot num1 twice?), otherwise I do not really understand why you can not add num3 and change the plot type to 'b'? kayj schrieb:> Hi All, > > I have been trying to plot multiple line plots with different colors on one > figure. in my example below I was able to plot cat vs num1 as a dot plot > connected with lines but was not able to do that for cat vs num2 and I do > not know how to add the third plot cat vs num3. below is my code > > > df <- data.frame(cat=1:10, num1=rnorm(10), num2=rnorm(10), num3=rnorm(10)) > plot(df$num1, type="b", col="red", xlab="categories", ylab="random numbers") > points(df$num1, type="p", pch=21, col="red",bg="red") #plot "num1" > points(df$num2, type="p", pch=21, col="green") #plot "num2" > legend(x="topright", legend=c("num1", "num2"), pch=c(16,16), > col=c("red","green")) #add a legend > > > how to make the second plot of type="b" and how to add a third plot cat vs > num3? > > I appreciate your help > > > >